Boot into TWRP (Home + Vol Up + Power) and perform a Factory Reset and wipe the System/Cache partitions.
Always verify the ROM’s last update date. As of 2026, most development has ceased, but existing builds remain functional for basic tasks like reading, media, and light browsing. Sm-t365 Custom Rom
But with one caveat: Use it as a dedicated device, not your primary tablet. Boot into TWRP (Home + Vol Up +